Error encountered while communicating with primary target ip address

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• • Edited by

    Thursday, May 28, 2020 8:36 AM
    format

• Hello,

  To nail down the issue further check where exactly the problem lies.

  1. Check your smart host (if it is configured in your exchange) and see the configuration is correct. Is there a chance to diable smarthost and chek?

  2. Suppose, you lost sending capability to my email address which is outside of your domain.Test the network connectivity by executing the
  bold commands from command prompt in exchange server

  C:Windowssystem32>nslookup
  Default Server:  server address
  Address:  server IP
  > set type=mx
  > exchangeonline.in
  Server:  server address
  Address:  server IP

  Non-authoritative answer:
  exchangeonline.in       MX preference = 0, mail exchanger = exchangeonline-in.mail.protection.outlook.com
  >

  Let’s know how the test goes
  

  ---

  Regards From: Exchange Online |
  World of Cloud Computing

• hello, ashkom

  thanks for your help

  1, i can get the network configuration also the IP address of the ad dns server is assigned in the dns also forwarders are configured to 8.8.8.8

  2,yes i can resolve external dns

  3,maybe here is the problem while trying to use telnet to try if port 25 is blocked im getting connection failed

  4,im not using a smart host

  5,i tried these commands and got results do u want to see them?

  6, i dont have av

• hello,

  C:windowssystem32>nslookup
  Default Server:  Myserver
  Address:  MY IP

  >  set type=mx
  > exchangeonline.in
  Server:  Myserver
  Address:  MY IP

  Non-authoritative answer:
  exchangeonline.in       MX preference = 0, mail exchanger = exchangeonline-in.mail.protection.outlook.com

  exchangeonline-in.mail.protection.outlook.com   internet address = 104.47.126.36
  exchangeonline-in.mail.protection.outlook.com   internet address = 104.47.125.36

• Hello,

  Thanks for providing the details. From this, I can see that the issue with the outbound port 25 from the exchange server to the internet. Since you are not using the smart host, firewall ports needs to be allowed from the exchange server. Kindly check with
  your network team and confirm if its allowed and make sure telnet works fine.

  Also, kindly the share the output of both the commands.

  ---

  Best Regards,

  Ashok M

  _______________________________________________________________

  Please mark the reply as an answer if you find it is helpful ________________________________________________________________

  • Edited by
    Ashokm_14
    Thursday, May 28, 2020 3:39 PM
    format

• Hello,

  Mostly looks like a DNS resolution issue. Please check your IP settings especially DNS settings. From DNS console in server’s DNS management console, see if you have valid addresses for DNS forwarders. Examine any records created in DNS has got
  a problem

  ---

  Regards From: Exchange Online |
  World of Cloud Computing

• thanks dear i will check with my network provider

• hello,

  im using 8.8.8.8 and 8.8.4.4 as forwarders do i need something more to add ?

• Hello, Sure. Please check the network communication and also make sure to get the mx record using the nslookup outputs for Gmail.com, outlook.com and you are able to telnet on port 25 or the returned results.

  ---

  Best Regards, Ashok M _______________________________________________________________ Please mark the reply as an answer if you find it is helpful ________________________________________________________________

  • Proposed as answer by
    Eric_YinMicrosoft contingent staff
    Friday, May 29, 2020 6:59 AM

• Hi,

  I’m here to confirm with you if your issue has been resolved. If the problem is successfully solved, you can share your solution and mark them or the helpful reply as answer, this will make answer searching in the forum easier and be beneficial to other
  community members as well.

  Regards,
  

  Eric Yin

  ---

  Please remember to
  mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact
  tnsf@microsoft.com.

Hi,

Do this issue is for internal or external users?

Try to run the shell command and post the output.

Get-Queue | FL *error*

Regards

Vickram M

Here is output of shell command:

LastError : [{LRT=7/8/2015 3:20:58 PM};{LED=441 4.4.1 Error encountered while communicating with primary target IP
            address: «Failed to connect. Winsock error code: 10060, Win32 error code: 10060.» Attempted failover to
            alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all
            alternate hosts. The last endpoint attempted was
            108.171.215.180:25};{FQDN=rionipec.com};{IP=108.171.215.180}]

LastError : [{LRT=7/8/2015 3:21:34 PM};{LED=451 4.4.0 Error encountered while communicating with primary target IP
            address: «421 4.2.1 Unable to connect.» Attempted failover to alternate host, but that did not succeed.
            Either there are no alternate hosts, or delivery failed to all alternate hosts. The last endpoint
            attempted was 79.175.161.16:25};{FQDN=pardisfakhr.com};{IP=79.175.161.16}]

LastError : [{LRT=7/8/2015 3:21:11 PM};{LED=441 4.4.1 Error encountered while communicating with primary target IP
            address: «Failed to connect. Winsock error code: 10060, Win32 error code: 10060.» Attempted failover to
            alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all
            alternate hosts. The last endpoint attempted was 31.193.152.50:25};{FQDN=amiran.org};{IP=31.193.152.50}]

LastError : [{LRT=7/8/2015 3:21:02 PM};{LED=441 4.4.1 Error encountered while communicating with primary target IP
            address: «Failed to connect. Winsock error code: 10060, Win32 error code: 10060.» Attempted failover to
            alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all
            alternate hosts. The last endpoint attempted was 194.126.4.70:25};{FQDN=idm.net.lb};{IP=194.126.4.70}]

LastError : [{LRT=7/8/2015 3:20:36 PM};{LED=441 4.4.1 Error encountered while communicating with primary target IP
            address: «Failed to connect. Winsock error code: 10060, Win32 error code: 10060.» Attempted failover to
            alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all
            alternate hosts. The last endpoint attempted was
            213.199.154.23:25};{FQDN=cityexpress.ge};{IP=213.199.154.23}]

LastError : [{LRT=7/8/2015 3:20:10 PM};{LED=441 4.4.1 Error encountered while communicating with primary target IP
            address: «Failed to connect. Winsock error code: 10060, Win32 error code: 10060.» Attempted failover to
            alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all
            alternate hosts. The last endpoint attempted was
            220.226.202.235:25};{FQDN=aramex.com};{IP=220.226.202.235}]

LastError :

LastError :

LastError :

LastError :

Please provide the output from ipconfig /all on every Exchange Servers and Get-SendConnector | FL. seems  second DNS entry is incorrect.

here is IPCONFIG /ALL

we have single Exchange server, here is Send connector:

AddressSpaces                : {SMTP:*;1}
AuthenticationCredential     :
CloudServicesMailEnabled     : False
Comment                      :
ConnectedDomains             : {}
ConnectionInactivityTimeOut  : 00:10:00
DNSRoutingEnabled            : True
DomainSecureEnabled          : False
Enabled                      : True
ErrorPolicies                : Default
ForceHELO                    : False
Fqdn                         :
FrontendProxyEnabled         : False
HomeMTA                      : Microsoft MTA
HomeMtaServerId              : E15
Identity                     : ToInternet
IgnoreSTARTTLS               : False
IsScopedConnector            : False
IsSmtpConnector              : True
MaxMessageSize               : 35 MB (36,700,160 bytes)
Name                         : ToInternet
Port                         : 25
ProtocolLoggingLevel         : None
RequireOorg                  : False
RequireTLS                   : False
SmartHostAuthMechanism       : None
SmartHosts                   : {}
SmartHostsString             :
SmtpMaxMessagesPerConnection : 20
SourceIPAddress              : 0.0.0.0
SourceRoutingGroup           : Exchange Routing Group (DWBGZMFD01QNBJR)
SourceTransportServers       : {E15}
TlsAuthLevel                 :
TlsCertificateName           :
TlsDomain                    :
UseExternalDNSServersEnabled : True

Have you made any recent changes on your servers, any?

Regards

Vickram M

Get-SendConnector | Set-SendConnector -ProtocolLoggingLevel Verbose

Run this command and collect the logs from «C:Program FilesMicrosoftExchangeServerV15TransportRolesLogsHubProtocolLogSmtpSend»

It looks it is not a DNS issue. It looks that it gets MX results, but it is unable to connect remote servers. Would you try to run telnet 220.226.202.235 25 (last SMTP server for domain aramex.com).

If you do not get any SMTP response, contact your network admin.

Connecting To 220.226.202.235…Could not open connection to the host, on port 25: Connect failed

it means it`s network issue?

Thanks Guys, it was ISP problem, they have blocked 25 port! Thanks all for HELP!

• Edited by

  18 hours 10 minutes ago